Although XenServer has found a substantial user base, it's never really seen much of a developer community form around it. Most development still comes from Citrix, which retains skin in the game from its commercial support program and from its paid version of the platform containing features not available in the free version. The failure to attract a healthy developer community isn't surprising, because open source developers often have an aversion to projects using such an "open core" business model.
Some of the products that appear on this site are from companies from which QuinStreet receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. QuinStreet does not include all companies or all types of products available in the marketplace.